Abstract
Encke's Comet.—A letter from Mr. H. E. Wood, Director of the Union Observatory, Johannesburg, announces that he detected this famous comet a week earlier than Mr. Bobone at Cordoba; but as he did not send a telegram, the announcement of the latter arrived first. The comet was so low in the evening twilight when first photographed that part of the field of the object-glass was cut off by the wall of the dome. In spite of this, the comet gave such a strong image with eight minutes? exposure that Mr. Wood estimates its magnitude as fully 7, which is 2 magnitudes brighter than Mr. Bobone's estimate. The plates have not yet been accurately measured, but the following rough positions are sent:
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Astronomical Topics. Nature 128, 156 (1931). https://doi.org/10.1038/128156a0
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DOI: https://doi.org/10.1038/128156a0